Bump cabal-install version number to 1.18.0.7

cabal-install/cabal-install.cabal

 Name:               cabal-install
-Version:            1.18.0.6
+Version:            1.18.0.7
 Synopsis:           The command-line interface for Cabal and Hackage.
 Description:
     The \'cabal\' command-line program simplifies the process of managing

cabal-install/changelog

 -*-change-log-*-
 
+1.18.0.7 Johan Tibell <johan.tibell@gmail.com> December 2014
+	* Support random 1.1.
+	* Fix bootstrap script after network package split.
+	* Support network-2.6 in test suite.
+
 1.18.0.5 Johan Tibell <johan.tibell@gmail.com> July 2014
 	* Make solver flag resolution more conservative.